The Pretty Little LiarsPowers That Be are seriously pumped about the Season 4 summer finale (Season 4, Episode 12). What did PLL showrunner Marlene King and PLL writer Bryan Holdman have to say about the climactic episode?

“We're baaaaaack,” tweeted Marlene yesterday (the PLL cast and crew returned to filming July 8 after a short filming hiatus). “Day one of summer finale shoot w@norbuck directing. More mind blowing PLL. Don't blink when you see the epi.” The episode was co-written by Marlene and Bryan, and Bryan tweeted that he was “very proud” of the ep. With Marlene and Bryan co-writing and Norman Buckley directing the episode, we have high hopes.

We don’t know many details about the summer finale yet, but we do know it will feature a Paily scene. Norman tweeted a pic of his camera setup that shows both Emily and Paige looking serious in separate shots. What could these lovely ladies be talking about? Well, the episode isn’t set to air until August 27, so we have some time to speculate.

Are you excited for the PLL summer finale? What do you think will be happening in the climactic episode? Share your theories in the comments below!

Catch the next episode of Pretty Little Liars on Tuesday, July 9, 2013 at 8 p.m. ET/PT on ABC Family.